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assets.go
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assets.go
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package data
import (
"context"
"database/sql"
"errors"
"fmt"
"slices"
"strings"
"time"
"github.com/lib/pq"
"github.com/stellar/go/protocols/horizon/base"
"github.com/stellar/stellar-disbursement-platform-backend/db"
)
type Asset struct {
ID string `json:"id" db:"id"`
Code string `json:"code" db:"code"`
Issuer string `json:"issuer" db:"issuer"`
CreatedAt *time.Time `json:"created_at,omitempty" db:"created_at"`
UpdatedAt *time.Time `json:"updated_at,omitempty" db:"updated_at"`
DeletedAt *time.Time `json:"deleted_at" db:"deleted_at"`
}
// IsNative returns true if the asset is the native asset (XLM).
func (a Asset) IsNative() bool {
return strings.TrimSpace(a.Issuer) == "" &&
slices.Contains([]string{"XLM", "NATIVE"}, strings.ToUpper(a.Code))
}
// Equals returns true if the asset is the same as the other asset. Case-insensitive.
func (a Asset) Equals(other Asset) bool {
if a.IsNative() && other.IsNative() {
return true
}
return strings.EqualFold(a.Code, other.Code) && strings.EqualFold(a.Issuer, other.Issuer)
}
func (a Asset) EqualsHorizonAsset(horizonAsset base.Asset) bool {
if a.IsNative() && horizonAsset.Type == "native" {
return true
}
return strings.EqualFold(a.Code, horizonAsset.Code) && strings.EqualFold(a.Issuer, horizonAsset.Issuer)
}
type AssetModel struct {
dbConnectionPool db.DBConnectionPool
}
func (a *AssetModel) Get(ctx context.Context, id string) (*Asset, error) {
var asset Asset
query := `
SELECT
a.id,
a.code,
a.issuer,
a.created_at,
a.updated_at,
a.deleted_at
FROM
assets a
WHERE
a.id = $1
`
err := a.dbConnectionPool.GetContext(ctx, &asset, query, id)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, ErrRecordNotFound
}
return nil, fmt.Errorf("error querying asset ID %s: %w", id, err)
}
return &asset, nil
}
// GetByCodeAndIssuer returns asset filtering by code and issuer.
func (a *AssetModel) GetByCodeAndIssuer(ctx context.Context, code, issuer string) (*Asset, error) {
var asset Asset
query := `
SELECT
a.id,
a.code,
a.issuer,
a.created_at,
a.updated_at,
a.deleted_at
FROM
assets a
WHERE a.code = $1
AND a.issuer = $2
`
err := a.dbConnectionPool.GetContext(ctx, &asset, query, code, issuer)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, ErrRecordNotFound
}
return nil, fmt.Errorf("error querying asset with code %s and issuer %s: %w", code, issuer, err)
}
return &asset, nil
}
// GetByWalletID returns all assets associated with a wallet.
func (a *AssetModel) GetByWalletID(ctx context.Context, walletID string) ([]Asset, error) {
assets := []Asset{}
query := `
SELECT
a.*
FROM
assets a
JOIN
wallets_assets wa ON a.id = wa.asset_id
WHERE
deleted_at IS NULL
AND wa.wallet_id = $1
ORDER BY
a.code ASC
`
err := a.dbConnectionPool.SelectContext(ctx, &assets, query, walletID)
if err != nil {
return nil, fmt.Errorf("querying assets: %w", err)
}
return assets, nil
}
// GetAll returns all assets in the database.
func (a *AssetModel) GetAll(ctx context.Context) ([]Asset, error) {
// TODO: We will want to filter out "deleted" assets at some point
assets := []Asset{}
query := `
SELECT
a.*
FROM
assets a
WHERE
deleted_at IS NULL
ORDER BY
a.code ASC
`
err := a.dbConnectionPool.SelectContext(ctx, &assets, query)
if err != nil {
return nil, fmt.Errorf("error querying assets: %w", err)
}
return assets, nil
}
// Insert is idempotent and returns a new asset if it doesn't exist or the existing one if it does, clearing the
// deleted_at field if it was marked as deleted.
func (a *AssetModel) Insert(ctx context.Context, sqlExec db.SQLExecuter, code string, issuer string) (*Asset, error) {
const query = `
WITH upsert_asset AS (
INSERT INTO assets
(code, issuer)
VALUES
($1, $2)
ON CONFLICT (code, issuer) DO UPDATE
SET deleted_at = NULL WHERE assets.deleted_at IS NOT NULL
RETURNING *
)
SELECT * FROM upsert_asset
UNION ALL -- // The UNION statement is applied to prevent the updated_at field from being autoupdated when the asset already exists.
SELECT * FROM assets WHERE code = $1 AND issuer = $2 AND NOT EXISTS (SELECT 1 FROM upsert_asset);
`
var asset Asset
err := sqlExec.GetContext(ctx, &asset, query, code, issuer)
if err != nil {
return nil, fmt.Errorf("error inserting asset: %w", err)
}
return &asset, nil
}
func (a *AssetModel) GetOrCreate(ctx context.Context, code, issuer string) (*Asset, error) {
const query = `
WITH create_asset AS(
INSERT INTO assets
(code, issuer)
VALUES
($1, $2)
ON CONFLICT (code, issuer) DO NOTHING
RETURNING *
)
SELECT * FROM create_asset ca
UNION ALL
SELECT * FROM assets a
WHERE a.code = $1
AND a.issuer = $2
`
var asset Asset
err := a.dbConnectionPool.GetContext(ctx, &asset, query, code, issuer)
if err != nil {
return nil, fmt.Errorf("error getting or creating asset: %w", err)
}
return &asset, nil
}
func (a *AssetModel) SoftDelete(ctx context.Context, sqlExec db.SQLExecuter, id string) (*Asset, error) {
query := `
UPDATE
assets
SET
deleted_at = NOW()
WHERE id = $1
RETURNING *
`
var asset Asset
err := sqlExec.GetContext(ctx, &asset, query, id)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, ErrRecordNotFound
}
return nil, fmt.Errorf("error soft deleting asset ID %s: %w", id, err)
}
return &asset, nil
}
type ReceiverWalletAsset struct {
WalletID string `db:"wallet_id"`
ReceiverWallet ReceiverWallet `db:"receiver_wallet"`
Asset Asset `db:"asset"`
DisbursementSMSTemplate *string `json:"-" db:"sms_registration_message_template"`
}
// GetAssetsPerReceiverWallet returns the assets associated with a READY payment for each receiver
// wallet provided.
func (a *AssetModel) GetAssetsPerReceiverWallet(ctx context.Context, receiverWallets ...*ReceiverWallet) ([]ReceiverWalletAsset, error) {
receiverWalletIDs := make([]string, len(receiverWallets))
for i, rw := range receiverWallets {
receiverWalletIDs[i] = rw.ID
}
var receiverWalletsAssets []ReceiverWalletAsset
query := `
WITH latest_payments_by_wallet AS (
-- Gets the latest payment by wallet with its asset
SELECT
p.id AS payment_id,
d.wallet_id,
COALESCE(d.sms_registration_message_template, '') as sms_registration_message_template,
p.asset_id
FROM
payments p
INNER JOIN disbursements d ON d.id = p.disbursement_id
INNER JOIN assets a ON a.id = p.asset_id
WHERE
p.status = $1
GROUP BY
p.id, p.asset_id, d.wallet_id, d.sms_registration_message_template
ORDER BY
p.updated_at DESC
), messages_resent_since_invitation AS (
-- Gets the number of attempts we resent the invitation message to the receiver by wallet with its asset.
SELECT
m.receiver_wallet_id,
m.wallet_id,
m.asset_id,
COUNT(*) AS total_invitation_sms_resent_attempts
FROM
messages m
INNER JOIN receiver_wallets rw ON rw.id = m.receiver_wallet_id AND rw.wallet_id = m.wallet_id
WHERE
rw.id = ANY($2)
AND rw.invitation_sent_at IS NOT NULL
AND m.created_at > rw.invitation_sent_at
AND m.status = 'SUCCESS'::message_status
GROUP BY
m.receiver_wallet_id,
m.wallet_id,
m.asset_id
)
SELECT DISTINCT
lpw.wallet_id,
lpw.sms_registration_message_template,
rw.id AS "receiver_wallet.id",
rw.invitation_sent_at AS "receiver_wallet.invitation_sent_at",
COALESCE(mrsi.total_invitation_sms_resent_attempts, 0) AS "receiver_wallet.total_invitation_sms_resent_attempts",
r.id AS "receiver_wallet.receiver.id",
r.phone_number AS "receiver_wallet.receiver.phone_number",
r.email AS "receiver_wallet.receiver.email",
a.id AS "asset.id",
a.code AS "asset.code",
a.issuer AS "asset.issuer",
a.created_at AS "asset.created_at",
a.updated_at AS "asset.updated_at"
FROM
assets a
INNER JOIN latest_payments_by_wallet lpw ON lpw.asset_id = a.id
INNER JOIN payments p ON p.id = lpw.payment_id
INNER JOIN receiver_wallets rw ON rw.id = p.receiver_wallet_id
INNER JOIN receivers r ON r.id = rw.receiver_id
LEFT JOIN messages_resent_since_invitation mrsi ON rw.id = mrsi.receiver_wallet_id AND rw.wallet_id = mrsi.wallet_id AND a.id = mrsi.asset_id
WHERE
rw.id = ANY($2)
`
err := a.dbConnectionPool.SelectContext(ctx, &receiverWalletsAssets, query, ReadyPaymentStatus, pq.Array(receiverWalletIDs))
if err != nil {
return nil, fmt.Errorf("error querying most recent asset per receiver wallet: %w", err)
}
return receiverWalletsAssets, nil
}